Grid-connected operation control method for user side microgrid
An operation control and micro-grid technology, applied in the field of micro-grid, can solve the problems of difficulty in large-scale popularization and application, high requirements for controller coordination, and insufficient consideration of the state of micro-grid, so as to meet the requirements of energy balance and output, efficiently and effectively. The effect of reliable coordinated control
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[0039] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings.
[0040] figure 1 It is the main process of grid-connected state coordination control strategy. The following constraints must be met when the user-side microgrid is connected to the grid:
[0041]
[0042] In the formula: P net is the active power of the tie line, and the power transmitted from the microgrid to the distribution network is positive; P pv is the active power of the photovoltaic power generation system; P bat is the active power of the energy storage system, with discharge as positive and charge as negative; P load Active power consumed by the load; P loss is the active power consumed by the microgrid; P dpt The active power command set for the dispatching layer of the distribution network, the transmission from the microgrid to the distribution network is positive; f is the frequency of the microgrid system, U is the volt...
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